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Bright decorative molded articles and molded articles located in the beam path of radar device

a radar device and beam path technology, applied in lighting support devices, instruments, lighting and heating apparatuses, etc., can solve the problems of not meeting the needs of various color tones, and achieve the effect of enhancing color tones and small radio transmission loss

Inactive Publication Date: 2006-04-20
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a bright decorative molded article with a specific structure that includes a bright decorative layer (upper surface layer) and a bright decorative layer (lower surface layer) covering the substrate and a light-emitting device. The bright decorative layer (lower surface layer) is made of indium, tin, indium alloy, or tin alloy. The molded article can be used in automobiles and allows only a small radio transmission loss when located in the beam path of the radar device. The use of LEDs emitting light of a specific wavelength and the small size of the LEDs make the molded article ideal for consumer needs and can be used for various color tones. The opaque resin layer enhances the color tone. The technical effects of the invention include improved design and color tone, as well as reduced radio transmission loss.

Problems solved by technology

Thus, it does not satisfy needs for various color tones.

Method used

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  • Bright decorative molded articles and molded articles located in the beam path of radar device
  • Bright decorative molded articles and molded articles located in the beam path of radar device
  • Bright decorative molded articles and molded articles located in the beam path of radar device

Examples

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examples

[0038] Hereafter, the examples of the present invention and the comparative examples are explained.

[0039] The bright decorative molded article shown in FIG. 1 was produced. In this example, a radar device was mounted behind the central portion of the front grille cover of an automobile, and a bright decorative component that would not deteriorate radar transparency was used for the front grille cover.

[0040] Examples of materials for the front cover of the radar are as follows. [0041] Opaque resin layer: AES [0042] Transparent resin layer: polycarbonate [0043] Bright decorative metal layer (upper surface layer): In, Sn, and Sn alloy [0044] Bright decorative metal layer (lower surface layer): In, Sn, and Sn alloy [0045] Light emitting diodes: orange

[0046] The orange light-emitting diodes used in the present example preferably emit light with wavelengths of approximately 600 nm to 604 nm. If the wavelength is shorter than the lower limit thereof, the emitted light becomes yellow. In...

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Abstract

This invention provides a bright decorative molded article exhibiting a bright color, and particularly a gold color tone. Also, this invention provides a molded article located in the beam path of a radar device that allows only a small radio transmission loss. This bright decorative molded article comprises: an opaque resin substrate; a light-emitting device provided thereon; a transparent resin layer covering the substrate and the light-emitting device; a bright decorative layer (upper surface layer) covering the light-emitting device on the transparent resin layer; and a bright decorative layer (lower surface layer) provided on the surface of the substrate at a portion covered by the bright decorative layer (upper surface layer). Alternatively, a bright decorative molded article comprises: an opaque resin substrate; a light-emitting device provided thereon; a transparent resin layer covering the substrate and the light-emitting device; and a bright decorative layer (lower surface layer) covering part of the surface of the substrate.

Description

TECHNICAL FIELD [0001] The present invention relates to variously colored bright decorative molded articles. More particularly, the present invention relates to bright decorative molded articles that are located in the beam path of a radar device mounted behind the front grille of an automobile for the purpose of protecting such radar device. BACKGROUND ART [0002] A bright decorative molded article, which comprises an opaque substrate, a bright decorative layer of indium, tin, tin alloy, or the like formed on the surface thereof, and a transparent resin layer covering the bright decorative layer, has been known. Such molded article develops silver color tone from the material that constitutes a bright decorative layer. Accordingly, molded articles with other color tones have been needed, and those with gold color tone have been needed, especially for luxury automobiles. In general, a thin metal layer with a gold metallic color tone that is used for bright decorative components, such...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F21S8/10
CPCB44C5/0453B60R13/00B60R13/005B60R13/04G01S7/00H01Q1/06H01Q1/44Y10S362/806G01S7/032G01S2013/93271
Inventor YAMAZAKI, HIKOHITOKAMIYA, ITSUO
Owner TOYOTA JIDOSHA KK
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